TadoX - POST /resumeSchedule sends 'null' body instead of '{}' causes 400 Unsupported content type error

[Gunther-1111]

2026-02-08 10:32:20.445 error Issue at setResumeRoomScheduleTadoX(): 'AxiosError: apiCall(setResumeRoomScheduleTadoX) failed: Request failed with status code 400' tado.0 2026-02-08 10:32:20.444 error Request failed with status code 400 with response "Unsupported content type"

In tadoApi.js i fixed it this way

const bodyToSend = (payload === 'null' || payload === null) ? {} : payload;

[HGlab01]

Hi!
Thanks for raising the issue and the suggested contribution!

You added this in the method
async apiCall(url, method = 'get', payload = null, caller = '') {
?

Can you please provide the full method as code snipped?
I am wondering if
async apiCall(url, method = 'get', payload = {}, caller = '') {
would solve it as well.
Additionally, not sure if all other API calls (which worked with NULL) will aslo work with {}.
For TadoX is seems to work, I have to check for v2/v3(+) as well.

[Gunther-1111]

Hello, Sorry, i can’t do that, because I'm not a developer. I fixed it with KI-help. I replaced the _doApiCalls in tadoApi.cs with this: /** * Handles the actual API call using axios. * * @param {string} url * @param {string }method * @param {any} payload * @param {string} caller */ async _doApiCall(url, method, payload, caller = '') { const maxRetries = 3; const retryDelay = 5000; // 5 seconds for (let attempt = 0; attempt <= maxRetries; attempt++) { try { if (!this.adapter.accessToken) { throw new Error('Not yet logged in'); } await this.adapter.refreshToken(); this.adapter.debugLog(`TadoX ${this.adapter.isTadoX} | method ${method} | URL ${url} | body "${JSON.stringify(payload)}"`); const response = await this.axiosInstance({ url, method, data: payload, headers: { Authorization: `Bearer ${this.adapter.accessToken.token.access_token}`, Source: `iobroker.tado@${this.adapter.version}`, }, }); const ratelimit = response.headers['ratelimit'] ?? ''; const ratelimitPolicy = response.headers['ratelimit-policy'] ?? ''; let callsLeft = ratelimit != null ? ratelimit.match(/r=(\d+)/) : undefined; //get r=value from the header let callsQuota = ratelimitPolicy != null ? ratelimitPolicy.match(/q=(\d+)/) : undefined; //get q=value from the header this.adapter.debugLog(`RateLimit: ${ratelimit}`); this.adapter.debugLog(`RateLimitPolicy: ${ratelimitPolicy}`); callsLeft = parseInt(callsLeft?.[1]) ?? undefined; callsQuota = parseInt(callsQuota?.[1]) ?? undefined; if (callsLeft !== undefined && callsQuota !== undefined) { this._updateCallStats(url, callsLeft, callsQuota); } return response.data; } catch (error) { const errorMessage = error instanceof Error ? error.message : String(error); if (errorMessage.includes('timeout of') && errorMessage.includes('ms exceeded') && attempt < maxRetries) { if (attempt > maxRetries - 2) { this.adapter.log.warn( `apiCall(${caller}) timed out (${TADO_TIMEOUT}ms). Retrying in ${retryDelay / 1000} seconds... (Attempt ${attempt + 1}/${maxRetries})`, ); } else { this.adapter.log.info( `apiCall(${caller}) timed out (${TADO_TIMEOUT}ms). Retrying in ${retryDelay / 1000} seconds... (Attempt ${attempt + 1}/${maxRetries})`, ); } await this.adapter.sleep(retryDelay); continue; } // @ts-expect-error error.respone exists if (error?.response?.data && error?.message) { // @ts-expect-error error.message exists console.error(`${error.message} with response ${JSON.stringify(error.response.data)}`); // @ts-expect-error error.message and error.response exists this.adapter.log.error(`${error.message} with response ${JSON.stringify(error.response.data)}`); } else { console.error(error); this.adapter.log.error(error); } if (typeof error === 'object' && error !== null && 'message' in error && typeof error.message === 'string') { error.message = `apiCall(${caller}) failed: ${error.message}`; } throw error; } } }

…

Am 08.02.2026 um 13:20 schrieb HGlab ***@***.***>: HGlab01 left a comment (DrozmotiX/ioBroker.tado#1117) Hi! Thanks for raising the issue and the suggested contribution! You added this in the method async apiCall(url, method = 'get', payload = null, caller = '') { ? Can you please provide the full method as code snipped? I am wondering if async apiCall(url, method = 'get', payload = {}, caller = '') { would solve it as well. Additionally, not sure if all other API calls (which worked with NULL) will aslo work with {}. For TadoX is seems to work, I have to check for v2/v3(+) as well. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[HGlab01]

in the shared code I cannot find the line
const bodyToSend = (payload === 'null' || payload === null) ? {} : payload;
you shared in your first posting

[Gunther-1111]

Sorry for that. That was version1 from the KI, then I got back the whole function this way I posted it here. My adapter is now down, because of too much API-Calls. Have to wait until tomorrow.

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Am 08.02.2026 um 18:05 schrieb HGlab ***@***.***>: HGlab01 left a comment (DrozmotiX/ioBroker.tado#1117) in the shared code I cannot find the line const bodyToSend = (payload === 'null' || payload === null) ? {} : payload; you shared in your first posting — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[HGlab01]

please check if this version works
iob url DrozmotiX/ioBroker.tado#a404d2c47a70c82df2f10d80c9052dcf2cd13391

You can run this command in the shell of your iobroker server

[Gunther-1111]

the adapter in now running for a few hours, everything works fine, the 400-Errors are gone!

…

Am 09.02.2026 um 13:27 schrieb HGlab ***@***.***>: HGlab01 left a comment (DrozmotiX/ioBroker.tado#1117) please check if this version works iob url DrozmotiX/ioBroker.tado#a404d2c47a70c82df2f10d80c9052dcf2cd13391 You can run this command in the shell of your iobroker server — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[Gunther-1111]

The adapter is working without errors. Thank You for Your work!

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Am 09.02.2026 um 13:27 schrieb HGlab ***@***.***>: HGlab01 left a comment (DrozmotiX/ioBroker.tado#1117) please check if this version works iob url DrozmotiX/ioBroker.tado#a404d2c47a70c82df2f10d80c9052dcf2cd13391 You can run this command in the shell of your iobroker server — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>