add nodejs sdapi example

cli/simple-txt2img.js

@@ -0,0 +1,61 @@
+// simple nodejs script to test sdnext api
+
+const fs = require('fs');
+const process = require('process');
+
+const sd_url = process.env.SDAPI_URL || 'http://127.0.0.1:7860';
+const sd_username = process.env.SDAPI_USR;
+const sd_password = process.env.SDAPI_PWD;
+const sd_options = {
+  // first pass
+  prompt: 'city at night',
+  negative_prompt: 'foggy, blurry',
+  sampler_name: 'UniPC',
+  seed: -1,
+  steps: 20,
+  batch_size: 1,
+  n_iter: 1,
+  cfg_scale: 6,
+  width: 512,
+  height: 512,
+  // enable second pass
+  enable_hr: true,
+  // second pass: upscale
+  hr_upscaler: 'SCUNet GAN',
+  hr_scale: 2.0,
+  // second pass: hires
+  hr_force: true,
+  hr_second_pass_steps: 20,
+  latent_sampler: 'UniPC',
+  denoising_strength: 0.5,
+  // second pass: refiner
+  refiner_steps: 5,
+  refiner_start: 0.8,
+  refiner_prompt: '',
+  refiner_negative: '',
+  // api return options
+  save_images: false,
+  send_images: true,
+};
+
+async function main() {
+  const method = 'POST';
+  const headers = new Headers();
+  const body = JSON.stringify(sd_options);
+  headers.set('Content-Type', 'application/json');
+  if (sd_username && sd_password) headers.set({ Authorization: `Basic ${btoa('sd_username:sd_password')}` });
+  const res = await fetch(`${sd_url}/sdapi/v1/txt2img`, { method, headers, body });
+  if (res.status !== 200) {
+    console.log('Error', res.status);
+  } else {
+    const json = await res.json();
+    console.log('result:', json.info);
+    for (const i in json.images) {
+      const f = `/tmp/test-{${i}.jpg`;
+      fs.writeFileSync(f, atob(json.images[i]), 'binary');
+      console.log('image saved:', f);
+    }
+  }
+}
+
+main();

modules/middleware.py

@@ -43,6 +43,8 @@ def setup_middleware(app: FastAPI, cmd_opts):
             res.headers["X-Process-Time"] = duration
             endpoint = req.scope.get('path', 'err')
             if (cmd_opts.api_log or cmd_opts.api_only) and endpoint.startswith('/sdapi'):
+                if endpoint.endswith('/sdapi/v1/log'):
+                    return res
                 log.info('API {t} {code} {prot}/{ver} {method} {endpoint} {cli} {duration}'.format( # pylint: disable=consider-using-f-string, logging-format-interpolation
                     t = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f"),
                     code = res.status_code,