urequests can't count content-length

[bvajk]

resp = urequests.post(self.push_url, data=data, headers=self.headers)
resp.close()
self.logger.warning("headers = {}, data({})({}) = {}".format(self.headers, type(data), len(data), data))

2025/06/15 18:26:40.006 [WARN] {"msg": "headers = {'Connection': 'close', 'Host': '192.168.1.100', 'Content-Type': 'application/json', 'Content-Length': '1954'}, data(<class 'str'>)(2123) = {\"streams\": [{\"values\":
 [[\"1750004784000000000\", \"2025/06/15 18:26:24.006 [INFO] {\\\"msg\\\": \\\"Gc collect scheduled\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[
\"1750004784000000000\", \"2025/06/15 18:26:24.006 [INFO] {\\\"msg\\\": \\\"Initializing scheduling\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[
\"1750004784000000000\", \"2025/06/15 18:26:24.006 [INFO] {\\\"msg\\\": \\\"Scheduling started\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"175
0004784000000000\", \"2025/06/15 18:26:24.006 [INFO] {\\\"msg\\\": \\\"Started! Model is esp-c3-tent-metrics\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"val
ues\": [[\"1750004790000000000\", \"2025/06/15 18:26:30.006 [METRIC] {\\\"msg\\\": {\\\"name\\\": \\\"healthcheck\\\", \\\"free_memory\\\": 69216, \\\"uptime_ms\\\": 17778}}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"
tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"1750004790000000000\", \"2025/06/15 18:26:30.006 [INFO] {\\\"msg\\\": \\\"Gc sweep complete\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-m
etrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"1750004790000000000\", \"2025/06/15 18:26:30.006 [METRIC] {\\\"msg\\\": {\\\"before\\\": 68192, \\\"after\\\": 117008, \\\"name\\\": \\\"gc\\\", \\\"diff\\\": 4
8816}}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"1750004790000000000\", \"2025/06/15 18:26:30.006 [METRIC] {\\\"msg\\\": {\\\"name\\\": \\\"tds\\
\", \\\"value\\\": 3.795254}}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"1750004790000000000\", \"2025/06/15 18:26:30.006 [METRIC] {\\\"msg\\\": {
\\\"name\\\": \\\"water_temperature\\\", \\\"value\\\": \\\"26.63\\\"}}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}, {\"values\": [[\"1750004800000000000\", \"2025/06/15 18:26:40.006 [INFO] {\\\"msg\\\": \\\"Uploading logs to loki\\\"}\"]], \"stream\": {\"service\": \"iot\", \"job\": \"tent-metrics\", \"model\": \"esp-c3-tent-metrics\"}}]}"}

due to this I can't send some requests to my loki, is there any way to solve this? I also tried with data.encode("utf-8"), same length in both places, just the type is bytes, it would also help if I could overwrite the content-length in the passed headers to something like 1_000_000, but I can't, and not sending content-length at all would also solve the issue, but it doesn't seem possible.
Any tips on this?

[bvajk]

I don't know what went wrong when I first tried overwriting the Content-Length header, but prividing it in the headers of the request successfully overwrites it and solves my problem